ArticleFrontiers in molecular biosciences2016
Age-Dependent Effects of Haptoglobin Deletion in Neurobehavioral and Anatomical Outcomes Following Traumatic Brain Injury.
Article in Frontiers in molecular biosciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 12 citations in OpenAlex.
- Age at Injury as a Modifier of Preclinical TBI Behavioral, Neuropathological, and Inflammatory Outcomes.Advances in neurobiology · 2024Review
- Prolonged course of brain edema and neurological recovery in a translational model of decompressive craniectomy after closed head injury in mice.Frontiers in neurology · 2023Article
- Identification of novel biomarkers for neonatal hypoxic-ischemic encephalopathy using iTRAQ.Italian journal of pediatrics · 2020Article
- Temporal and age-dependent effects of haptoglobin deletion on intracerebral hemorrhage-induced brain damage and neurobehavioral outcomes.Experimental neurology · 2019Article
- Chronic Upregulation of Cleaved-Caspase-3 Associated with Chronic Myelin Pathology and Microvascular Reorganization in the Thalamus after Traumatic Brain Injury in Rats.International journal of molecular sciences · 2018Article
- Haemoglobin scavenging in intracranial bleeding: biology and clinical implications.Nature reviews. Neurology · 2018Review
- Oral Administration of Sitagliptin Activates CREB and Is Neuroprotective in Murine Model of Brain Trauma.Frontiers in pharmacology · 2016Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
Cerebral hemorrhages are common features of traumatic brain injury (TBI) and their presence is associated with chronic disabilities. Recent clinical and experimental evidence suggests that haptoglobin (Hp), an endogenous hemoglobin-binding protein most abundant in blood plasma, is involved in the intrinsic molecular defensive mechanism, though its role in TBI is poorly understood. The aim of this study was to investigate the effects of Hp deletion on the anatomical and behavioral outcomes in the controlled cortical impact model using wildtype (WT) C57BL/6 mice and genetically modified mice lacking the Hp gene (Hp(-∕-)) in two age cohorts [2-4 mo-old (young adult) and 7-8 mo-old (older adult)]. The data obtained suggest age-dependent significant effects on behavioral and anatomical TBI outcomes and recovery from injury. Moreover, in the adult cohort, neurological deficits in Hp(-∕-) mice at 24 h were significantly improved compared to WT, whereas there were no significant differences in brain pathology between these genotypes. In contrast, in the older adult cohort, Hp(-∕-) mice had significantly larger lesion volumes compared to WT, but neurological deficits were not significantly different. Immunohistochemistry for ionized calcium-binding adapter molecule 1 (Iba1) and glial fibrillary acidic protein (GFAP) revealed significant differences in microglial and astrocytic reactivity between Hp(-∕-) and WT in selected brain regions of the adult but not the older adult-aged cohort. In conclusion, the data obtained in the study provide clarification on the age-dependent aspects of the intrinsic defensive mechanisms involving Hp that might be involved in complex pathways differentially affecting acute brain trauma outcomes.
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